Pureview 808 with Nokia Belle FP2

Is it worth it to get the Nokia Pureview 808 because it uses Symbian Belle, essentially a dead OS? I've been thinking about the Note II, iPhone and Pureview 808. Both the iPhone 5 and Pureview 808 have 4" screens while Samsung Note II has 5.5" screen.

How much longer will Nokia continue to support Symbian? I've read that Symbian Carla should be out in 2 months? Should I wait?

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Never buy version 1.0 of anything.